[PATCH v4 01/44] bfd: add intelgt target to BFD

[Markus Metzger <markus.t.metzger@intel.com>]

From: Natalia Saiapova <natalia.saiapova@intel.com>

Add description of IntelGT target to BFD.  Describe its relocation
types.

To: <binutils@sourceware.org>
---
 bfd/Makefile.am       |  2 ++
 bfd/Makefile.in       |  4 ++++
 bfd/archures.c        |  4 ++++
 bfd/bfd-in2.h         |  2 ++
 bfd/config.bfd        |  5 +++++
 bfd/configure         |  1 +
 bfd/configure.ac      |  1 +
 bfd/cpu-intelgt.c     | 41 ++++++++++++++++++++++++++++++++++++
 bfd/elf64-intelgt.c   | 48 +++++++++++++++++++++++++++++++++++++++++++
 bfd/targets.c         |  2 ++
 binutils/readelf.c    |  5 +++++
 include/elf/intelgt.h | 45 ++++++++++++++++++++++++++++++++++++++++
 12 files changed, 160 insertions(+)
 create mode 100644 bfd/cpu-intelgt.c
 create mode 100644 bfd/elf64-intelgt.c
 create mode 100644 include/elf/intelgt.h

diff --git a/bfd/Makefile.am b/bfd/Makefile.am
index e4df05441eb..1976b76ca50 100644
--- a/bfd/Makefile.am
+++ b/bfd/Makefile.am
@@ -119,6 +119,7 @@ ALL_MACHINES = \
 	cpu-i386.lo \
 	cpu-ia64.lo \
 	cpu-iamcu.lo \
+	cpu-intelgt.lo \
 	cpu-ip2k.lo \
 	cpu-iq2000.lo \
 	cpu-kvx.lo \
@@ -202,6 +203,7 @@ ALL_MACHINES_CFILES = \
 	cpu-i386.c \
 	cpu-ia64.c \
 	cpu-iamcu.c \
+	cpu-intelgt.c \
 	cpu-ip2k.c \
 	cpu-iq2000.c \
 	cpu-kvx.c \
diff --git a/bfd/Makefile.in b/bfd/Makefile.in
index 14512cf61fb..5656faf4cc6 100644
--- a/bfd/Makefile.in
+++ b/bfd/Makefile.in
@@ -587,6 +587,7 @@ ALL_MACHINES = \
 	cpu-i386.lo \
 	cpu-ia64.lo \
 	cpu-iamcu.lo \
+	cpu-intelgt.lo \
 	cpu-ip2k.lo \
 	cpu-iq2000.lo \
 	cpu-kvx.lo \
@@ -670,6 +671,7 @@ ALL_MACHINES_CFILES = \
 	cpu-i386.c \
 	cpu-ia64.c \
 	cpu-iamcu.c \
+	cpu-intelgt.c \
 	cpu-ip2k.c \
 	cpu-iq2000.c \
 	cpu-kvx.c \
@@ -1028,6 +1030,7 @@ BFD64_BACKENDS = \
 	elf64-hppa.lo \
 	elf64-ia64-vms.lo \
 	elf64-ia64.lo \
+	elf64-intelgt.lo \
 	elf64-kvx.lo \
 	elf64-loongarch.lo \
 	elf64-mips.lo \
@@ -1499,6 +1502,7 @@ distclean-compile:
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-i386.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-ia64.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-iamcu.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-intelgt.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-ip2k.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-iq2000.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-kvx.Plo@am__quote@
diff --git a/bfd/archures.c b/bfd/archures.c
index 18472b820bc..3bf2a93ab35 100644
--- a/bfd/archures.c
+++ b/bfd/archures.c
@@ -399,6 +399,8 @@ DESCRIPTION
 .  bfd_arch_ia64,      {* HP/Intel ia64.  *}
 .#define bfd_mach_ia64_elf64	64
 .#define bfd_mach_ia64_elf32	32
+.  bfd_arch_intelgt,   {* Intel(R) Graphics Technology.  *}
+.#define bfd_mach_intelgt	9
 .  bfd_arch_ip2k,      {* Ubicom IP2K microcontrollers. *}
 .#define bfd_mach_ip2022	1
 .#define bfd_mach_ip2022ext	2
@@ -667,6 +669,7 @@ extern const bfd_arch_info_type bfd_hppa_arch;
 extern const bfd_arch_info_type bfd_i386_arch;
 extern const bfd_arch_info_type bfd_iamcu_arch;
 extern const bfd_arch_info_type bfd_ia64_arch;
+extern const bfd_arch_info_type bfd_intelgt_arch;
 extern const bfd_arch_info_type bfd_ip2k_arch;
 extern const bfd_arch_info_type bfd_iq2000_arch;
 extern const bfd_arch_info_type bfd_kvx_arch;
@@ -755,6 +758,7 @@ static const bfd_arch_info_type * const bfd_archures_list[] =
     &bfd_i386_arch,
     &bfd_iamcu_arch,
     &bfd_ia64_arch,
+    &bfd_intelgt_arch,
     &bfd_ip2k_arch,
     &bfd_iq2000_arch,
     &bfd_kvx_arch,
diff --git a/bfd/bfd-in2.h b/bfd/bfd-in2.h
index 8d12ddf6723..611403f6925 100644
--- a/bfd/bfd-in2.h
+++ b/bfd/bfd-in2.h
@@ -1656,6 +1656,8 @@ enum bfd_architecture
   bfd_arch_ia64,      /* HP/Intel ia64.  */
 #define bfd_mach_ia64_elf64    64
 #define bfd_mach_ia64_elf32    32
+  bfd_arch_intelgt,   /* Intel(R) Graphics Technology.  */
+#define bfd_mach_intelgt       9
   bfd_arch_ip2k,      /* Ubicom IP2K microcontrollers. */
 #define bfd_mach_ip2022        1
 #define bfd_mach_ip2022ext     2
diff --git a/bfd/config.bfd b/bfd/config.bfd
index 8eb2131128d..82c2dfef0e8 100644
--- a/bfd/config.bfd
+++ b/bfd/config.bfd
@@ -204,6 +204,7 @@ fido*)		 targ_archs=bfd_m68k_arch ;;
 hppa*)		 targ_archs=bfd_hppa_arch ;;
 i[3-7]86)	 targ_archs=bfd_i386_arch ;;
 ia16)		 targ_archs=bfd_i386_arch ;;
+intelgt)	 targ_archs=bfd_intelgt_arch ;;
 loongarch*)	 targ_archs=bfd_loongarch_arch ;;
 m6811*|m68hc11*) targ_archs="bfd_m68hc11_arch bfd_m68hc12_arch bfd_m9s12x_arch bfd_m9s12xg_arch" ;;
 m6812*|m68hc12*) targ_archs="bfd_m68hc12_arch bfd_m68hc11_arch bfd_m9s12x_arch bfd_m9s12xg_arch" ;;
@@ -657,6 +658,10 @@ case "${targ}" in
     targ_selvecs=alpha_vms_lib_txt_vec
     want64=true
     ;;
+  intelgt-*-elf)
+    targ_defvec=intelgt_elf64_vec
+    want64=true
+    ;;
 #endif /* BFD64 */
 
   ip2k-*-elf)
diff --git a/bfd/configure b/bfd/configure
index 12d43a5aeae..71192288275 100755
--- a/bfd/configure
+++ b/bfd/configure
@@ -15947,6 +15947,7 @@ do
     ia64_elf64_hpux_be_vec)	 tb="$tb elf64-ia64.lo elfxx-ia64.lo elf64.lo $elf"; target_size=64 ;;
     ia64_elf64_vms_vec)		 tb="$tb elf64-ia64-vms.lo elf64-ia64.lo elfxx-ia64.lo elf64.lo vms-lib.lo vms-misc.lo $elf"; target_size=64 ;;
     ia64_pei_vec)		 tb="$tb pei-ia64.lo pepigen.lo $coff"; target_size=64 ;;
+    intelgt_elf64_vec)		 tb="$tb elf64-intelgt.lo elf64.lo $elf"; target_size=64 ;;
     ip2k_elf32_vec)		 tb="$tb elf32-ip2k.lo elf32.lo $elf" ;;
     iq2000_elf32_vec)		 tb="$tb elf32-iq2000.lo elf32.lo $elf" ;;
     kvx_elf32_vec)		 tb="$tb elf32-kvx.lo elfxx-kvx.lo elf32.lo $elf $ipa" ;;
diff --git a/bfd/configure.ac b/bfd/configure.ac
index ee335f75dd9..dd8c9d87776 100644
--- a/bfd/configure.ac
+++ b/bfd/configure.ac
@@ -488,6 +488,7 @@ do
     ia64_elf64_hpux_be_vec)	 tb="$tb elf64-ia64.lo elfxx-ia64.lo elf64.lo $elf"; target_size=64 ;;
     ia64_elf64_vms_vec)		 tb="$tb elf64-ia64-vms.lo elf64-ia64.lo elfxx-ia64.lo elf64.lo vms-lib.lo vms-misc.lo $elf"; target_size=64 ;;
     ia64_pei_vec)		 tb="$tb pei-ia64.lo pepigen.lo $coff"; target_size=64 ;;
+    intelgt_elf64_vec)		 tb="$tb elf64-intelgt.lo elf64.lo $elf"; target_size=64 ;;
     ip2k_elf32_vec)		 tb="$tb elf32-ip2k.lo elf32.lo $elf" ;;
     iq2000_elf32_vec)		 tb="$tb elf32-iq2000.lo elf32.lo $elf" ;;
     kvx_elf32_vec)		 tb="$tb elf32-kvx.lo elfxx-kvx.lo elf32.lo $elf $ipa" ;;
diff --git a/bfd/cpu-intelgt.c b/bfd/cpu-intelgt.c
new file mode 100644
index 00000000000..87341eda015
--- /dev/null
+++ b/bfd/cpu-intelgt.c
@@ -0,0 +1,41 @@
+/* BFD support for the Intel(R) Graphics Technology architecture.
+   Copyright (C) 2019-2026 Free Software Foundation, Inc.
+
+   This file is part of BFD, the Binary File Descriptor library.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+   MA 02110-1301, USA.  */
+
+#include "sysdep.h"
+#include "bfd.h"
+#include "libbfd.h"
+
+const bfd_arch_info_type bfd_intelgt_arch =
+  {
+    32, /* 32 bits in a word.  */
+    64, /* 64 bits in an address.  */
+    8,  /* 8 bits in a byte.  */
+    bfd_arch_intelgt, /* Architecture.  */
+    bfd_mach_intelgt, /* Machine number.  */
+    "intelgt", /* Architecture name.  */
+    "intelgt", /* Printable name.  */
+    3, /* Section alignment power.  */
+    true, /* Default machine for this architecture.  */
+    bfd_default_compatible, /* Check for compatibility.  */
+    bfd_default_scan, /* Check for an arch and mach hit.  */
+    bfd_arch_default_fill, /* Allocate and fill bfd.  */
+    NULL, /* Pointer to next.  */
+    0 /* Maximum offset of a reloc from the start of an insn.  */
+  };
diff --git a/bfd/elf64-intelgt.c b/bfd/elf64-intelgt.c
new file mode 100644
index 00000000000..11369242f15
--- /dev/null
+++ b/bfd/elf64-intelgt.c
@@ -0,0 +1,48 @@
+/* Intel(R) Graphics Technology-specific support for ELF
+   Copyright (C) 2022-2026 Free Software Foundation, Inc.
+
+   This file is part of BFD, the Binary File Descriptor library.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+   MA 02110-1301, USA.  */
+
+#include "sysdep.h"
+#include "bfd.h"
+#include "libbfd.h"
+#include "elf-bfd.h"
+
+#include "elf/common.h"
+#include "elf/intelgt.h"
+
+
+static bool
+elf64_intelgt_elf_object_p (bfd *abfd)
+{
+  return bfd_default_set_arch_mach (abfd, bfd_arch_intelgt, bfd_mach_intelgt);
+}
+
+#define TARGET_LITTLE_SYM		    intelgt_elf64_vec
+#define TARGET_LITTLE_NAME		    "elf64-intelgt"
+#define ELF_ARCH			    bfd_arch_intelgt
+#define ELF_MACHINE_CODE		    EM_INTELGT
+#define ELF_OSABI			    0
+#define ELF_MAXPAGESIZE			    0x40000000
+
+#define elf_backend_object_p		    elf64_intelgt_elf_object_p
+
+#define bfd_elf64_bfd_reloc_type_lookup     bfd_default_reloc_type_lookup
+#define bfd_elf64_bfd_reloc_name_lookup     _bfd_norelocs_bfd_reloc_name_lookup
+
+#include "elf64-target.h"
diff --git a/bfd/targets.c b/bfd/targets.c
index fcf650410dc..5a665acd3fe 100644
--- a/bfd/targets.c
+++ b/bfd/targets.c
@@ -766,6 +766,7 @@ extern const bfd_target ia64_elf64_le_vec;
 extern const bfd_target ia64_elf64_hpux_be_vec;
 extern const bfd_target ia64_elf64_vms_vec;
 extern const bfd_target ia64_pei_vec;
+extern const bfd_target intelgt_elf64_vec;
 extern const bfd_target ip2k_elf32_vec;
 extern const bfd_target iq2000_elf32_vec;
 extern const bfd_target kvx_elf32_vec;
@@ -1121,6 +1122,7 @@ static const bfd_target * const _bfd_target_vector[] =
 	&ia64_elf64_hpux_be_vec,
 	&ia64_elf64_vms_vec,
 	&ia64_pei_vec,
+	&intelgt_elf64_vec,
 #endif
 
 	&ip2k_elf32_vec,
diff --git a/binutils/readelf.c b/binutils/readelf.c
index b5865d9717e..a6a6f390995 100644
--- a/binutils/readelf.c
+++ b/binutils/readelf.c
@@ -125,6 +125,7 @@
 #include "elf/kvx.h"
 #include "elf/lm32.h"
 #include "elf/iq2000.h"
+#include "elf/intelgt.h"
 #include "elf/m32c.h"
 #include "elf/m32r.h"
 #include "elf/m68k.h"
@@ -2687,6 +2688,10 @@ dump_relocations (Filedata *          filedata,
 	case EM_AMDGPU:
 	  rtype = elf_amdgpu_reloc_type (type);
 	  break;
+
+	case EM_INTELGT:
+	  rtype = elf_intelgt_reloc_type (type);
+	  break;
 	}
 
       char *symbol_name = NULL;
diff --git a/include/elf/intelgt.h b/include/elf/intelgt.h
new file mode 100644
index 00000000000..bcc62ee8f35
--- /dev/null
+++ b/include/elf/intelgt.h
@@ -0,0 +1,45 @@
+/* Copyright (C) 2022-2026 Free Software Foundation, Inc.
+
+   This file is part of BFD, the Binary File Descriptor library.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+   MA 02110-1301, USA.  */
+
+/* This file holds definitions specific to the IntelGT ABI.  */
+
+#ifndef _ELF_INTELGT_H_
+#define _ELF_INTELGT_H_
+
+#include "elf/reloc-macros.h"
+
+START_RELOC_NUMBERS (elf_intelgt_reloc_type)
+  RELOC_NUMBER (R_ZE_NONE,			     0)
+  /* 64-bit address.  */
+  RELOC_NUMBER (R_ZE_SYM_ADDR,			     1)
+  /* 32-bit address or lower 32-bit of a 64-bit address.  */
+  RELOC_NUMBER (R_ZE_SYM_ADDR_32,		     2)
+  /* Higher 32bits of a 64-bit address.  */
+  RELOC_NUMBER (R_ZE_SYM_ADDR32_HI,		     3)
+  /* 32-bit field of payload offset of per-thread data.  */
+  RELOC_NUMBER (R_ZE_PER_THREAD_PAYLOAD_OFFSET_32,   4)
+  /* 32-bit global immediate.  */
+  RELOC_NUMBER (R_ZE_GLOBAL_IMM_32,                  5)
+  /* SEND instruction offset, used for BTI patching.  */
+  RELOC_NUMBER (R_ZE_SEND,                           6)
+  /* 16-bit address or immediate.  */
+  RELOC_NUMBER (R_ZE_SYM_ADDR_16,                    7)
+END_RELOC_NUMBERS (R_ZE_max)
+
+#endif /* _ELF_INTELGT_H_ */
-- 
2.43.0

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